Question 1 If 85 mL of 0.548 M NAOH is diluted to a total volume of 152 mL, what is the molarity of the diluted NaOH?

Q: During cold weather, calcium chloride is added to concrete to increase the speed at which the…

A: Here 100 ml samle of aqueous solution of calcium chloride is diluted to make volume 345 ml and the…

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO,)) by measuring out 57.0 umol of aluminum…

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Q: What is the percent by mass NaCl of a solution that contains 86.6 grams of BeO and 127.2 grams of…

A: The solution is a homogeneous mixture of solute and solvent. The solute dissolves in a solvent, in…

Q: Assume the density of water is exactly 1 g/mL, what is the mass of solute in 1 L of a solution with…

A: Given, The density of water = 1g/mL The volume of solution = 1L Concentration = 1μg/mL

Q: When pure magnesium chloride dissolved in water, its ions dissociate completely in water. a) Comment…

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Q: Be sure to answer all parts. How many moles and numbers of ions of each type are present in the…

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Q: A chemist prepares a solution of sodium bromide (NaBr) by measuring out 33. mg of NaBr into a 250.…

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Q: Suppose 1.97 g of iron() chioride (FeCl,) are dissolved in 890. ml of water. Find the composition of…

A: Relation between number of equivalents and number of moles is following. No. of equivalents = No. of…

Q: Enter your answer in the provided box. What is the weight/volume percent concentration using the…

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Q: What is the molarity of a solution prepared by dissolving 226.8 grams of Mg3(PO4)2 in enough water…

A: Given Mass of Mg3(PO4)2 = 226.8g Total volume of Mg3(PO4)2  solution = 2.4 L Molarity of Mg3(PO4)2…

Q: Please answer it this is a question from the topic of chemistry "Solution"   A water solution…

A: Density of the solution tells about the quantity of the substance present per unit volume of the…

Q: What is the mass of a solution if 25.0 ml of NaOH was added to 35 0 ml of water? Assume a density of…

A: Since the volume of water is not clear, assuming it is 350 mL and the density of solution is 1.00…

Q: If you add 0.023 moles of ethanol to a 500. mL flask and fill to the 500 mL mark with water, what is…

A: Given : no. of moles of ethanol = 0.023 mol  volume of solution = 500 mL To calculate :  molarity of…

Q: A solution of ammonia and water contains 4 10x1025 water molecules and 5 90x1024 ammonia molecules…

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Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

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Q: A chemist prepares a solution of vanadium(III) bromide (VBr,) by measuring out 49. mg of VBr, into a…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: If 122 mL of allM glucose solution is diluted to 550.0 mL, what is the molarity of the diluted…

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Q: What volume of a 4.60 M solution of NaNO3 do you need to make 0.450 L of a 1.00 M solution of NaNO3?…

A: The dilution law is shown below: M1×V1 = M2×V2 M1 = molarity for concentrated solution M2 = molarity…

Q: A chemist prepares a solution of mercury(II) lodide (Hgl,) by measuring out 0.00033 umol of…

A: Given :-  No. of moles of HgI2 = 0.00033 umol  Volume of solution = 150. mL  To calculate :…

Q: How many grams of copper sulfate would you need to make 9 L of a 2 M copper sulfate solution (m.w. =…

A: Molarity = Number of moles of solute, molvolume of the solution in Lmoles =  mass in g Molecular…

Q: How many moles do you need to prepare 1.481 L of a 1.77 M NaOH solution? Round your answer to 2…

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Q: A chemist prepares a solution of magnesium chloride (MgCI,) by measuring out 25.5 mg of MgCl, into a…

A: Given:: mass of MgCl2 = 25.5 mg = 0.0255 g molar mass of MgCl2 =95.211 g mol-1 volume = 50 ml =…

Q: A student was answering the following question and made a mistake. Identify the mistake and correct…

A: Given data,Mass of solution=350gPercentage by mass=58%

Q: To prepare the 5% calcium chloride solution called for in Question 1b, how many moles of calcium…

A: Mass of calcium chloride present in 100 g of solution = 5 g The number of moles of calcium chloride…

Q: A chemist prepares a solution of vanadium(III) chloride (VCl,) by measuring out 47.6 mg of VCl, into…

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Q: What is the molarity (moles/L) of the solution made from mixing together 652 mL of water with 64.3…

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Q: How many moles of solute are present in 300. mL of a 0.60 M solution of NaOH? Please report your…

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Q: How many moles of nitic acid, HNO3, are present in 426 mL of a 0.921 M nitric acid solution?…

A: Since moles of solute = molrity X volume of solution in L Volume of solution given = 426 mL = 0.426…

Q: A chemist prepares a solution of calcium sulfate (CaSO)4 by measuring out 0.258μmol of calcium…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 2.3g of MgCl2 into a…

A: The solubility of MgCl2 in the water at normal conditions is very high, so 2.3 g of MgCl2 is…

Q: 1. How many moles of potassium chloride, KCl, are in 35.0 g of KCl. 2. Enter your answer with both…

A: 1.) Given  mass of KCl = 35.0 g    Required data - molar mass of KCl = 74.5 g/mol   Formula used…

Q: A chemist prepares a solution of vanadiumIII bromide VBr3 by measuring out 0.40g of VBr3 into a…

A: Molar mass of VBr3 = Atomic mass of V + 3 X Atomic mass of Br = 51 + 3 X 80 = 291 g/mol Given : Mass…

Q: A student prepared a standard copper solution by combining 2.63 mL of stock 0.270 mol/L copper(II)…

A: Recall the following relation        V1×M1=V2×M2Given that,initial volumeV1=2.63 mL        initial…

Q: Verify your calculation Did you report your data to the correct number of significant figures?…

A: Molarity of NaOH(M1)=0.4332M Initial volume of buret=1.90mL Final volume of buret=14.75mL Volume of…

Q: Give an example of a mixture in which solute is solid and solvent is liquid.

A: NaCl (ionic solid) Water (liquid) Salt water

Q: A chemist prepares a solution of vanadiumIII bromide VBr3 by measuring out 0.50g of VBr3 into a…

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Q: A chemist prepares a solution of silver perchlorate (AgCIO) by measuring out 2.4 kg of silver…

A: The amount of solute present in a solution is called Concentration. There are many concnetration…

Q: A chemist prepares a solution of sodium chloride (NaCl) by measuring out 0.50 g of NaCl into a 250.…

A: Given-> Weight of NaCl = 0.50 gm Volume = 250 ml =0.250 L (1L= 1000ml)

Q: For the following questions (Q1-Q5), consider the compound tartrazine (Yellow 5 food dye) that has a…

A: Since you have posted multiple questions, we are entitled to answer the first question only.

Q: A chemist prepares a solution of vanadium(III) chloride (VCl,) by measuring out 0.30 g of VCl, into…

A: Given, mass of VCl3= 0.30 g Volume of VCl3= 300 ml = 300×10−3L molar mass of VCl3=157.3 g/mol

Q: A standard acid was prepared by placing 5.98 grams of H2C2O42H2O (molar mass:  126.07 g/mole) into a…

A: It's a multiple part question.   Given information, Mass of H2C2O4.2H2O = 5.98 g Molar mass of…

Q: A chemist prepares a solution of silver(II) oxide AgO by measuring out 0.000677μmol of silver(II)…

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Q: How would the following errors affect the empirical formula for the compound? The student ran out of…

A: The heating is used in this procedure so as to eliminate to the most the molecules of water. Start…

Q: O CHEMICAL REACTIONS Calculating molarity using solute moles A chemist prepares a solution of…

A: Given, Note: 1 µmol = 10-6 mol Moles of FeBr3 = 85 µmol = 85 × 10-6 mol Note: 1 mL = 10-3 L Volume…

Q: A student needs to prepare 100. mL of 0.618 M Cu(NO3)2 solution.  What mass, in grams, of copper(II)…

A: The mass of required copper(II)nitrate is determined by using given volume and molarity.The molarity…

Q: You dissolve 7.01 mol of glucose into a total volume of 438 mL.  What is the molarity of glucose in…

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Q: Suppose 0.0387 g of sodium iodide is dissolved in 200. mL of a 14.0 m M aqueous solution of…

A: We know that Molarity = number of moles of solute / volume of the solution in L Given that mass of…

Q: You can easily measure the volume of NaOH or HCl solution using a graduated cylinder. What piece of…

A: By taking volume and density we can measure the mass of NaOH or HCl without using a balance. Density…

Q: What is the molarity of a 2.54 moles of Li,S03 dissolved to make 34.55 liters of solution? Please…

A: Given: 2.54 mole 34.55 L of solution

Q: How many grams of sucrose (molar mass = 342.3 g/mol) are needed to make 550.0 mL of a 0.31 M…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.